What is the significance of the quote below from Hawthorne's "The Scarlet Letter"?"...come away, mother! Come away, or yonder old Black Man will...

Functioning more as a symbol than a real character, Pearl of "The Scarlet Letter" works for Hawthorne as both a literal personage and as a figurative one.  Often, therefore, she is representative of the feelings of her mother, Hester Prynne.  For instance, in Chapter IV Hawthorne narrates that the infant

writhed in convulsions of pain, was a forcible type in its little frame, of the moral agony which Hester Prynne had borne throughout the day.

Acting again as the representative of Hester's feelings, little Pearl expresses Hester's misgivings about Roger Chillingworth in the above passage as well as defining an area of meaning and any interpretation that falls within that area.  Earlier in this chapter, for example, Hawthorne writes,

He[Roger Chillingworth] now dug into the poor clergyman's heart, like aminer searching for gold; or, rather, like a sexton delving into a grave, possibly in quest of a jewel that had been buried on the dead man's bosom, but likely to find nothing save mortality and corruption. 

Thus, little Pearl's exclamation about Roger Chillingworth provides an interpretation of this earlier statement of Hawthorne; it gives the added meaning that Chillingworth is malevolent, violating the "sanctity of the human heart."  Also, when Pearl declares, "But he cannot catch little Pearl," her role as the guiltless product of her parents' passion is also made evident.  For, there is nothing in Pearl that Chillingworth can violate or torture.